EL5112 - LEDs

Single-channel mode (1xABC)

No.	Name	Color	Description
1	A1	green, red	Green: indicates TRUE level Red: There is a broken wire at the respective input. Diagnosis is only possible if the following three conditions are met. The corresponding input is differentially wired, i.e.: „Counter mode“ 0x8001:1D =0 (Encoder RS422 (diff. Input)) or „Counter mode“ 0x8001:1D =1 (Counter RS422 (diff. Input)) "Error Detection" for the respective input is enabled: „Error Detection A“ 0x8000:0B = TRUE „Error Detection B“ 0x8000:0C = TRUE „Error Detection C“ 0x8000:0D = TRUE The differential voltage V_{ID Low}is typically less than 0.67 V (subject to change).
2	B1
3	C1
4	Status Input	red	Fault signal input from encoder. Input is internally connected to 5 V via a pull-up resistor. The encoder output must actively pull the signal against GND.
			on	Output active at the encoder, a fault message is present at the encoder
			off	Output not active at the encoder; no fault message is present
5	PowerEnc.	green	Operating voltage display for incremental encoder power supply
7	Latch	green	is lit, if a signal (+24 V) is connected to the latch input
9	Run	green	This LED indicates the terminal's operating state:
			off	State of the EtherCAT State Machine: INIT = initialization of the terminal or BOOTSTRAP = function for firmware updates of the terminal
			flashing	State of the EtherCAT State Machine: PREOP = function for mailbox communication and different default settings set
			Single flash	State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks. Outputs remain in safe state
			on	State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible
10	Diag	red	Initialization process active or state of the EtherCAT State Machine: BOOT
15	Gate/Latch	green	is lit if a signal (+24 V) is present at the gate/latch input

Two-channel mode (2xAB)

EL5112 - LEDs 2: — EL5112 - LEDs in two-channel mode

No.	Name	Color	Description
1	A1	green, red	Green: indicates TRUE level Red: There is a broken wire at the respective input. Diagnosis is only possible if the following three conditions are met. The corresponding input is differentially wired, i.e.: „Counter mode“ 0x8001:1D =0 (Encoder RS422 (diff. Input)) or „Counter mode“ 0x8001:1D =1 (Counter RS422 (diff. Input)) "Error Detection" for the respective input is enabled: „Error Detection A“ 0x8000:0B = TRUE „Error Detection B“ 0x8000:0C = TRUE The differential voltage V_{ID Low}is typically less than 0.67 V (subject to change).
2	B1
3	A2
4	B2
5	PowerEnc.	green	Operating voltage display for incremental encoder power supply
7	Latch	green	is lit, if a signal (+24 V) is connected to the latch input
9	Run	green	This LED indicates the terminal's operating state:
			off	State of the EtherCAT State Machine: INIT = initialization of the terminal or BOOTSTRAP = function for firmware updates of the terminal
			flashing	State of the EtherCAT State Machine: PREOP = function for mailbox communication and different default settings set
			Single flash	State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks. Outputs remain in safe state
			on	State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible
10	Diag	red	Initialization process active or state of the EtherCAT State Machine: BOOT
15	Gate/Latch	green	is lit if a signal (+24 V) is present at the gate/latch input